Intermittent fault

Check the control module and CD-ROM player connectors for contact resistance and oxidation according to Contact resistance and oxidation .

Check the cables between the control module #A4, #A5, #A6, #A18, #A19 and CD-ROM player terminals 4, 5, 11, 12 13 for an intermittent open-circuit according to Open-circuit, intermittent faults , an intermittent short-circuit to ground according to Short-circuit to ground, intermittent faults and an intermittent short-circuit to supply voltage according to Short-circuit to supply voltage, intermittent faults .

Remedy as necessary.

Other information:

To access/replace the control module, see Replacing the control module, old system .
To access/replace the CD-ROM player, see Replacing, CD-ROM player .
To connect the breakout box, see Connecting the breakout box .

Fig 1: Identifying Connector Terminals

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Ohmmeter

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Identifying Control Module Connector Terminals

Courtesy of VOLVO CARS OF NORTH AMERICA.